INDUSTRIAL PROCESS AND COMMERCIAL VENTILATION SYSTEMS. Twin City Fan RADIAL TIP FANS MODEL RTF CATALOGUE M950 FEBRUARY 2013

Transcription

1 Twin City an INDUSTRIAL PROCESS AND COMMERCIAL VENTILATION SYSTEMS RADIAL TIP ANS MODEL RT CATALOGUE M90 EBRUARY

2 RADIAL TIP ANS Model RT Model RT radial tip fans are of a heavy duty, rugged design, suitable for applications involving large volumes of gas streams at moderate to high pressure. Designed to handle clean or dirty airstreams, they are widely used to exhaust gases from bag-type collectors, precipitators, scrubbers, cyclones, and other industrial applications. This type of fan is also used for induced draft on boilers, incinerators, and kiln exhaust. Steel, air pollution, dryer, petrochemical, cement, furnaces and ovens, solvent recovery, sewage sludge and solid waste incineration industries have found the Model RT radial tip design particularly suitable for their applications. Model RT Arr. Capabilities Heavy-duty construction with choice of speed range: Class 8 Suitable to 9 m/s tip speed Pressures to 960 Pa Class Suitable to m/s tip speed Pressures to 890 Pa Class Impellers are equipped with wear pads on the blades. Consult factory for higher tip speed designs. Volume flow to 6 m /sec. Standard fan suitable to 48 C. eatures High efficiency, for lower operating costs. AMCA licensed air performance on sizes 0 through, pages to. Self-cleaning impeller design. Statically and dynamically balanced rotor assembly. Heavy duty, self-aligning, grease lubricated, antifriction, pillow block bearings. Heavy-gauge reinforced housing and bearings pedestal for vibration-free service. Twin City an & Blower certifies that the RT Radial Tip ans Sizes 0 through shown on pages to are licensed to bear the AMCA Seal. The ratings shown are based on tests and procedures performed in accordance with AMCA Publication and comply with the requirements of the AMCA Certified Ratings Program. Twin City an TWIN CITY AN - CATALOGUE M90

3 ACCESSORIES Inlet Boxes Integral or detached type, generously designed to minimise pressure drop. Specify inlet box position to AMCA Standard shown on page 4. Detached inlet boxes include support legs and flanges on both inlet and outlet. ree-standing designs are also available to allow a flexible connector between box and fan. Standard detached inlet box will not support stack weight. All inlet box designs include drain and access door. Inlet Box Dampers Pre-spin design, heavy duty construction. The damper will spin the air in the direction of impeller rotation resulting in a savings in horsepower at reduced loads. Outlet Dampers Double surface airfoil blades are available in either parallel or opposed blade design. Temperature and Vibration Detectors Thermocouples or RTDs can be installed on the bearings. Various types of vibration switches are available. Evasé Usually fabricated by customer as a part of the ductwork. an outlet must be expanded to equal evasé area shown in the catalogue to obtain rated performance. Construction is of the same gauge as fan housing when purchased from the factory. High Temperature Construction 49 to 60 C: Requires addition of shaft cooler and high temperature grease bearings. 6 to : Above modifications plus high temperature aluminium paint. 6 to 46 : Above modifications plus modified pedestal design. Abrasion and Corrosion Resistant Alloys and Coatings Optional construction includes an abrasion resistant steel blade, backplate, scroll and side or cheek liners. Construction materials include Corten, stainless steel, Monel, aluminium, Hastelloy, and other alloys. Construction from heavier than standard gauges is available. Special corrosion resistant coatings of various types are available. ARRANGEMENTS Arrangement The usual choice for many V-belt drive applications. Impeller is overhung. Steel bearing pedestal to size 0. Size requires concrete pedestal. Consult factory for V-belt drive applications larger than 0 kw. Arrangement SI SWSI fan with integral inlet box and independent bearing pedestals. The impeller is supported between two bearings. Arrangement SI Direct coupled with a flexible coupling. A singlewidth, single-inlet fan with an integral inlet box and independent bearing pedestal and bearing/motor pedestal installed on a common base. The impeller is supported between two bearings. Arrangement 8 Direct coupled with a flexible coupling. The motor pedestal can be custom fabricated out of steel for up to kw. On larger kw units, use of standard Arr. fan with a concrete pedestal for the motor is advisable. Arrangement 9 loor mount. Similar to Arrangement with the fan base extended to mount motor in a horizontal position.

4 INLET BOXES Typical Inlet Box Dimensions Inlet Box Positions for Centrifugal ans A B To Suit an AN SIZE C D A B C D Dimensions are not to be used for construction. Dimensions are in mm unless otherwise noted. INLET AREA (m ) x x x x x x x x x x x x x x x x INLET BOX POSITIONS AND DESCRIPTIONS 4 Angular Down Intake 90 Horizontal Right Intake Angular Up Intake 80 Bottom Up Intake Angular Up Intake 0 Horizontal Left Intake Angular Down Intake 60 Top Down Intake Reference line is the Top Vertical Axis through center of fan shaft. Position of inlet box and air entry to inlet box is determined from drive side of fan. Position of inlet box is designated in degrees clockwise from Top Vertical Axis as shown. Positions to in some cases interfere seriously with floor structure. Arrangement fan with detached inlet box. Can be supplied in Arrangement 8. Arrangement fan with attached or integral inlet box. Can be supplied in Arrangement 8. Inlet Box an Inlet Box an Subbase Arrangement SI fan with integral inlet box, centrally supported impeller, independent bearings pedestals to be installed on concrete pedestals. Arrangement SI Similar to Arrangement SI except bearings pedestals and motor installed on a steel common base. Inlet Box an an Inlet Box Coupling Motor Concrete Subbase 4 TWIN CITY AN - CATALOGUE M90

5 ENGINEERING DATA Table. Material and Mechanical Specifications AN SIZE MAX. kw MIN. MAX. kw WHEEL WHEEL DESIGN SHAT MAX. WR V-BELT SHEAVE DIRECT RT DIA. DRIVE DIA. RPM DRIVE WT. ARR. BACK (kg-m (kg) HOUSING AN WT. BLADES SHROUD ) PLATE (kg) ¹ Minimum fan diameter when using maximum kw motor. Check with the factory on applications over kw. ² Maximum RPM shown are for C. or higher temperatures use Table on page 6 to derate RPM. ³ Size RT is not supplied with conventional bearings pedestal. Instead we supply channel sub-bases. The sub-base is to be mounted on concrete pedestal with steel sole plate in the field. an weights include weight of channel sub-base. Dimensions are in millimeters unless otherwise noted. Twin City an

6 ENGINEERING DATA Derating actors or High Temperature When elevated temperatures are encountered, the maximum RPM allowable as shown in Table on page must be derated according to the derating factors from Table. Standard steel construction is suitable for use in gas temperatures to 46 C. Aluminium impellers are suitable for temperatures to C only. Table. Temperature Derating actors TEMP. ( C) DERATING ACTOR STANDARD STEEL STAINLESS STEEL Performance Correction for Temperature and Altitude The performance curves in this catalogue are based on fans handling standard air at a density of.4 kilograms per cubic meter. This is equivalent to C at sea level (9.968 mm Hg barometric pressure). When specified performance is at a density different than standard, it must be converted to the equivalent standard conditions before entering the performance curves. The equivalent conditions can be calculated by using the Temperature and Altitude Density Ratios table below. Table. Temperature and Altitude Density Ratios AIR TEMP C ALTITUDE IN METRES ABOVE SEA LEVEL BAROMETRIC PRESSURE IN mm Hg (Torr) BAROMETRIC PRESSURE IN kpa Twin City an 6 TWIN CITY AN - CATALOGUE M90

7 PERORMANCE CURVES 0 8,000 6,000 RT RPM 80 RPM 0 RPM 0 LwA LwA, RPM 9 LwA kw 8.kW kw P - an Total Pressure (in W.G.). P - an Total Pressure (Pa),000 LwA 0 LwA 40 RPM 8 LwA.kW.kW kw.kw.kw.kw 0. 0 RPM 4% Pk. Eff. 6% Eff. 0.kW 0.kW 0.kW 0.kW low (m³ /sec) anvelocity Pressure (Pa) an Efficiency Grade = EG low (CM) (in Thousands). Performance certified is for Installation Type B & D: ree or ducted inlet, ducted outlet.. Power rating (kw) does not include transmission losses.. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound power level ratings shown are in decibels, referred to E- watts calculated per AMCA Standard 0.. Values shown are for inlet LwiA sound power levels for Installation Type B: ree inlet, ducted outlet.. The A-weighted sound ratings shown have been calculated per AMCA Standard 0.

8 PERORMANCE CURVES 0 8,000 RT 0 00 RPM LwA 6, RPM LwA 0 RPM kw 0kW 00 RPM kw P - an Total Pressure (in W.G.) P - an Total Pressure (Pa),000, RPM 8 LwA LwA.kW.kW kw.kw 8.kW kw RPM 0 LwA 9 LwA..kW.kW 0 LwA 0.kW RPM 4% Pk. Eff. 60 LwA 6 LwA % Eff. 0.kW 0.kW 0.kW 0.8kW low (m³ /sec) anvelocity Pressure (Pa) an Efficiency Grade = EG low (CM) (in Thousands). Performance certified is for Installation Type B & D: ree or ducted inlet, ducted outlet.. Power rating (kw) does not include transmission losses.. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound power level ratings shown are in decibels, referred to E- watts calculated per AMCA Standard 0.. Values shown are for inlet LwiA sound power levels for Installation Type B: ree inlet, ducted outlet.. The A-weighted sound ratings shown have been calculated per AMCA Standard 0. 8 TWIN CITY AN - CATALOGUE M90

9 PERORMANCE CURVES 6,000 RT 80 RPM 0 RPM LwA 00 RPM 0 LwA kw 0kW P - an Total Pressure (in W.G.). P - an Total Pressure (Pa),000,000 RPM 8.kW 40 RPM kw LwA 8 LwA 9 LwA kw.kw.kw.kw.kw kw 0 LwA.kW RPM 4% Pk. Eff LwA 6% Eff. 0.kW 0.kW 0.kW 0.kW low (m³ /sec) anvelocity Pressure (Pa). - low (CM) (in Thousands) an Efficiency Grade = EG. Performance certified is for Installation Type B & D: ree or ducted inlet, ducted outlet.. Power rating (kw) does not include transmission losses.. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound power level ratings shown are in decibels, referred to E- watts calculated per AMCA Standard 0.. Values shown are for inlet LwiA sound power levels for Installation Type B: ree inlet, ducted outlet.. The A-weighted sound ratings shown have been calculated per AMCA Standard

10 PERORMANCE CURVES 0 8,000 RT RPM 6,000 0 RPM LwA LwA 00 RPM 0 LwA kw P - an Total Pressure (in W.G.). P - an Total Pressure (Pa),000,000 RPM LwA 0kW 40 RPM 8 LwA 9 LwA.kW.kW kw.kw kw 8.kW kw kw 0 LwA.kW 00 RPM.kW % Pk. Eff. 6 LwA 64% Eff. 0.kW 0.kW low (m³ /sec) anvelocity Pressure (Pa) an Efficiency Grade = EG. - low (CM) (in Thousands). Performance certified is for Installation Type B & D: ree or ducted inlet, ducted outlet.. Power rating (kw) does not include transmission losses.. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound power level ratings shown are in decibels, referred to E- watts calculated per AMCA Standard 0.. Values shown are for inlet LwiA sound power levels for Installation Type B: ree inlet, ducted outlet.. The A-weighted sound ratings shown have been calculated per AMCA Standard 0. TWIN CITY AN - CATALOGUE M90

11 PERORMANCE CURVES 0,000 RT 0 0, RPM 0 8,000 0 RPM LwA LwA P - an Total Pressure (in W.G.) P - an Total Pressure (Pa) 6,000,000,000 RPM 00 RPM 40 RPM 8.kW kw.kw.kw kw kw 90kW kw kw kw 0kW kw 00 RPM 0 0 LwA LwA 8 LwA 9 LwA LwA 0 LwA. 0. 9% Pk. Eff. 0% Eff..kW.kW.kW 0.kW low (m³ /sec) anvelocity Pressure (Pa) an Efficiency Grade = EG low (CM) (in Thousands). Performance certified is for Installation Type B & D: ree or ducted inlet, ducted outlet.. Power rating (kw) does not include transmission losses.. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound power level ratings shown are in decibels, referred to E- watts calculated per AMCA Standard 0.. Values shown are for inlet LwiA sound power levels for Installation Type B: ree inlet, ducted outlet.. The A-weighted sound ratings shown have been calculated per AMCA Standard 0.

12 PERORMANCE CURVES,000 RT 00 0 RPM 0 8,000 LwA 6, RPM LwA kw kw 40 RPM LwA 90kW kw 0 LwA kw P - an Total Pressure (in W.G.) P - an Total Pressure (Pa),000,000 RPM 8 LwA 9 LwA kw 0kW kw 8.kW kw.kw.kw. 00 RPM 9% Pk. Eff. LwA 0% Eff. kw.kw.kw.kw low (m³ /sec) anvelocity Pressure (Pa) an Efficiency Grade = EG low (CM) (in Thousands). Performance certified is for Installation Type B & D: ree or ducted inlet, ducted outlet.. Power rating (kw) does not include transmission losses.. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound power level ratings shown are in decibels, referred to E- watts calculated per AMCA Standard 0.. Values shown are for inlet LwiA sound power levels for Installation Type B: ree inlet, ducted outlet.. The A-weighted sound ratings shown have been calculated per AMCA Standard 0. TWIN CITY AN - CATALOGUE M90

13 PERORMANCE CURVES,000 RT 0 0 8, RPM LwA 6,000 LwA 40 RPM kw 90kW kw P - an Total Pressure (in W.G.). P - an Total Pressure (Pa),000, RPM RPM LwA 8 LwA 9 LwA 0 LwA kw.kw.kw kw kw kw 0kW kw 8.kW 0 LwA.kW 6 LwA.kW RPM.kW % Pk. Eff. 60 LwA 0% Eff. 0.kW 0.kW 0.kW low (m³ /sec) anvelocity Pressure (Pa) 0 - low (CM) (in Thousands) an Efficiency Grade = EG 80. Performance certified is for Installation Type B & D: ree or ducted inlet, ducted outlet.. Power rating (kw) does not include transmission losses.. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound power level ratings shown are in decibels, referred to E- watts calculated per AMCA Standard 0.. Values shown are for inlet LwiA sound power levels for Installation Type B: ree inlet, ducted outlet.. The A-weighted sound ratings shown have been calculated per AMCA Standard 0.

14 PERORMANCE CURVES,000 RT RPM 0 8,000 LwA 6,000 LwA 40 RPM 60kW LwA kw kw 90kW 0 LwA kw P - an Total Pressure (in W.G.) P - an Total Pressure (Pa),000, RPM RPM 8 LwA LwA 9 LwA 8.kW kw.kw.kw kw kw 0kW kw. 0 LwA kw.kw 00 RPM 0 6 LwA.kW % Pk. Eff. 0.kW % Eff..kW 0.kW low (m³ /sec) anvelocity Pressure (Pa) an Efficiency Grade = EG low (CM) (in Thousands). Performance certified is for Installation Type B & D: ree or ducted inlet, ducted outlet.. Power rating (kw) does not include transmission losses.. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound power level ratings shown are in decibels, referred to E- watts calculated per AMCA Standard 0.. Values shown are for inlet LwiA sound power levels for Installation Type B: ree inlet, ducted outlet.. The A-weighted sound ratings shown have been calculated per AMCA Standard 0. 4 TWIN CITY AN - CATALOGUE M90

15 PERORMANCE CURVES RT 6, RPM LwA LwA kw 0 LwA 90kW kw,000 kw 9 LwA P - an Total Pressure (in W.G.). P - an Total Pressure (Pa), RPM RPM LwA 8 LwA.kW.kW kw 0kW kw 8.kW kw 0 LwA kw RPM 6% Pk. Eff. 0% Eff..kW.kW.kW low (m³ /sec) anvelocity Pressure (Pa) an Efficiency Grade = EG low (CM) (in Thousands). Performance certified is for Installation Type B & D: ree or ducted inlet, ducted outlet.. Power rating (kw) does not include transmission losses.. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound power level ratings shown are in decibels, referred to E- watts calculated per AMCA Standard 0.. Values shown are for inlet LwiA sound power levels for Installation Type B: ree inlet, ducted outlet.. The A-weighted sound ratings shown have been calculated per AMCA Standard 0.

16 PERORMANCE CURVES 0 8,000 RT RPM 6,000 LwA LwA 60kW kw kw 0 LwA 90kW P - an Total Pressure (in W.G.) P - an Total Pressure (Pa),000, RPM RPM 8 LwA 9 LwA kw kw kw 0kW kw 8.kW kw LwA.kW..kW 00 RPM 0 LwA kw.kw.kw low (m³ /sec) % Pk. Eff. 0% Eff anvelocity Pressure (Pa) an Efficiency Grade = EG low (CM) (in Thousands). Performance certified is for Installation Type B & D: ree or ducted inlet, ducted outlet.. Power rating (kw) does not include transmission losses.. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound power level ratings shown are in decibels, referred to E- watts calculated per AMCA Standard 0.. Values shown are for inlet LwiA sound power levels for Installation Type B: ree inlet, ducted outlet.. The A-weighted sound ratings shown have been calculated per AMCA Standard 0. 6 TWIN CITY AN - CATALOGUE M90

17 PERORMANCE CURVES,000 RT RPM 0 8,000 LwA 6,000 LwA LwA 60kW kw P - an Total Pressure (in W.G.) P - an Total Pressure (Pa),000, RPM kw RPM 90kW kw 8 LwA 9 LwA 0 LwA kw kw 0kW kw 8.kW kw. 00 RPM LwA.kW.kW RPM 6 LwA 0 LwA.kW kw 0. % Pk. Eff. 60 LwA.kW 0.kW.kW low (m³ /sec) % Eff anvelocity Pressure (Pa) an Efficiency Grade = EG low (CM) (in Thousands). Performance certified is for Installation Type B & D: ree or ducted inlet, ducted outlet.. Power rating (kw) does not include transmission losses.. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound power level ratings shown are in decibels, referred to E- watts calculated per AMCA Standard 0.. Values shown are for inlet LwiA sound power levels for Installation Type B: ree inlet, ducted outlet.. The A-weighted sound ratings shown have been calculated per AMCA Standard 0.

18 PERORMANCE CURVES RT 40 LwA RPM 0 LwA 60kW kw,000 9 LwA kw kw 90kW P - an Total Pressure (in W.G.). P - an Total Pressure (Pa), RPM kw 00 RPM LwA 8 LwA kw 0kW kw 8.kW kw.kw 0 LwA.kW 0 0 RPM 6 LwA kw % Pk. Eff..kW 0% Eff..kW.kW low (m³ /sec) anvelocity Pressure (Pa) an Efficiency Grade = EG low (CM) (in Thousands). Performance certified is for Installation Type B & D: ree or ducted inlet, ducted outlet.. Power rating (kw) does not include transmission losses.. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound power level ratings shown are in decibels, referred to E- watts calculated per AMCA Standard 0.. Values shown are for inlet LwiA sound power levels for Installation Type B: ree inlet, ducted outlet.. The A-weighted sound ratings shown have been calculated per AMCA Standard 0. 8 TWIN CITY AN - CATALOGUE M90

19 PERORMANCE CURVES RT LwA RPM LwA 60kW P - an Total Pressure (in W.G.). P - an Total Pressure (Pa),000, RPM 90kW 00 RPM kw kw 8 LwA LwA 9 LwA 0 LwA kw 0kW kw 8.kW kw kw kw 0 LwA.kW 0 RPM.kW % Pk. Eff. 0% Eff..kW kw low (m³ /sec) anvelocity Pressure (Pa) an Efficiency Grade = EG low (CM) (in Thousands). Performance certified is for Installation Type B & D: ree or ducted inlet, ducted outlet.. Power rating (kw) does not include transmission losses.. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound power level ratings shown are in decibels, referred to E- watts calculated per AMCA Standard 0.. Values shown are for inlet LwiA sound power levels for Installation Type B: ree inlet, ducted outlet.. The A-weighted sound ratings shown have been calculated per AMCA Standard

20 PERORMANCE CURVES 0 8,000 RT 660 6,000 RPM LwA LwA P - an Total Pressure (in W.G.). P - an Total Pressure (Pa),000, RPM LwA 60kW 00 RPM kw kw 8 LwA 9 LwA 0 LwA kw 0kW kw 8.kW kw 90kW kw kw 0 RPM 0 LwA.kW.kW RPM 6% Pk. Eff. 6 LwA kw.kw.kw low (m³ /sec) 0% Eff anvelocity Pressure (Pa) an Efficiency Grade = EG low (CM) (in Thousands). Performance certified is for Installation Type B & D: ree or ducted inlet, ducted outlet.. Power rating (kw) does not include transmission losses.. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound power level ratings shown are in decibels, referred to E- watts calculated per AMCA Standard 0.. Values shown are for inlet LwiA sound power levels for Installation Type B: ree inlet, ducted outlet.. The A-weighted sound ratings shown have been calculated per AMCA Standard 0. TWIN CITY AN - CATALOGUE M90

21 PERORMANCE CURVES 0,000 8,000 RT 0 LwA 6,000 RPM LwA LwA 00 RPM 0 LwA P - an Total Pressure (in W.G.). P - an Total Pressure (Pa),000,000 0 RPM 00 RPM 8 LwA LwA 9 LwA 90kW kw kw kw 0kW kw 8.kW kw 60kW kw kw 0 LwA.kW RPM 0 % Pk. Eff. 6 LwA.kW % Eff..kW kw low (m³ /sec) anvelocity Pressure (Pa) an Efficiency Grade = EG low (CM) (in Thousands). Performance certified is for Installation Type B & D: ree or ducted inlet, ducted outlet.. Power rating (kw) does not include transmission losses.. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound power level ratings shown are in decibels, referred to E- watts calculated per AMCA Standard 0.. Values shown are for inlet LwiA sound power levels for Installation Type B: ree inlet, ducted outlet.. The A-weighted sound ratings shown have been calculated per AMCA Standard 0.

22 PERORMANCE CURVES 0,000 RT 0,000 LwA 0 8,000 LwA 6,000 RPM LwA P - an Total Pressure (in W.G.). P - an Total Pressure (Pa),000,000 0 RPM 00 RPM LwA 00 RPM 8 LwA 9 LwA kw 8.kW kw 0 LwA kw 0kW LwA kw 90kW kw kw kw 60kW RPM 0 LwA 0. 0 % Pk. Eff. % Eff..kW.kW low (m³ /sec) anvelocity Pressure (Pa) an Efficiency Grade = EG low (CM) (in Thousands). Performance certified is for Installation Type B & D: ree or ducted inlet, ducted outlet.. Power rating (kw) does not include transmission losses.. Performance ratings do not include the effects of appurtenances (accessories). 4. The sound power level ratings shown are in decibels, referred to E- watts calculated per AMCA Standard 0.. Values shown are for inlet LwiA sound power levels for Installation Type B: ree inlet, ducted outlet.. The A-weighted sound ratings shown have been calculated per AMCA Standard 0. TWIN CITY AN - CATALOGUE M90

23 DIMENSIONAL DATA Inlet lange PCD AN SIZE BC C CC DH NH TH Twin City an

24 DIMENSIONAL DATA Arrangement, SWSI AN DB DD D A B BC BH C CC SIZE CC DE DG DH DX E EH EW E G H J K N G GA AN SIZE GC H HA HB HC HD HE H HG HH J K KA KB KL KS CL 8 CL 4 L M MA M NH x 6 x x 6 6 x x 6 6 x x 6 6 x x 8 6 x x 8 9 x x 8 9 x AN SD P Q SIZE CL 8 CL 4 SE BC998D NOTES:. CW rotation shown, CCW rotation is similar but opposite.. Standard accessories: bolted access door, housing drain, shaft seal, punched inlet & outlet flanges.. These holes are in Size 0, 00 & 0 Only. DIMENSIONS ARE NOT TO BE USED OR CONSTRUCTION. CERTIIED DRAWINGS AVAILABLE UPON REQUEST. 4 TWIN CITY AN - CATALOGUE M90

25 DIMENSIONAL DATA Arrangement, SWSI AN DB DD D A B BC BH C CC SIZE CC DE DG DH DX E EH EW E G H J K N G AN GA KS GC H HA HB HC HD HE H HG HH J K KA KB KL SIZE CL 8 CL 4 CL 8 CL 4 L M x x x x x x x x x x x x x x x x x 6 x AN SIZE MA MD M NH P Q SD CL 8 CL 4 SE TH BC9986G NOTES:. CW rotation shown, CCW rotation is similar but opposite.. Size will be supplied with channel sub-base to be mounted on concrete pedestal in the field.. Standard accessories: bolted access door, housing drain, pie split housing, shaft seal, punched inlet & outlet flanges. DIMENSIONS ARE NOT TO BE USED OR CONSTRUCTION. CERTIIED DRAWINGS AVAILABLE UPON REQUEST.

26 TYPICAL SPECIICATIONS Model RT ans shall be Model RT Radial Tip ans as manufactured by Twin City an & Blower, Minneapolis, Minnesota. PERORMANCE Performance ratings shall conform to AMCA Standard (fan efficiency grade) and (air performance). ans shall be tested in accordance with ANSI/AMCA Standard (air performance) and 00 (sound performance) in an AMCA accredited laboratory. ans shall be licensed to bear the AMCA certified ratings seal for air and fan efficiency grade (EG). HOUSING Housings shall be made of plate steel with continuously welded construction and braced with structural shapes to eliminate any resonant vibration and to provide smooth operation. Size 60 and larger housings shall have a pie-shaped split for easy impeller and shaft removal without disturbing inlet and outlet ductwork. The housing split must be fully gasketed and bolted together to prevent any leaks. langed inlet and outlet, inspection door, shaft seal and drain shall be provided as standard equipment. Bearing support members shall be fabricated of heavy steel shapes or made of concrete to insure maximum rigidity. IMPELLER Blade design shall be curved forward at the entering edge to meet air at the correct angle of entry for high efficiency and radial at the tip of the leaving edge to provide a self-cleaning characteristic. Blades shall be formed from high strength low alloy material for strength and accuracy of contour and continuously welded to the inlet shroud and backplate. A heavy fabricated steel hub shall be provided. Impellers shall be shrunk fit on the shafts and hubs must include puller holes for use in event of impeller removal. All impellers shall be statically and dynamically balanced on precision electronic machines, as well as trim balanced during the factory test run. SHAT Shafts shall be AISI 40 or 4 hot rolled steel, accurately turned, ground, polished, and ring gauged for accuracy. Shafts shall be sized for the first critical speed of at least.4 times the maximum speed. BEARINGS ans shall be supplied with heavy duty, self-aligning, grease lubricated, anti-friction, pillow block type bearings selected for a minimum average bearing life (ABMA L-0) in excess of 0,000 hours at the maximum fan RPM. Bearings may be ball or roller with non-split pillow block or spherical roller bearings with split pillow block housing (bearing races not split). Where required, sleeve bearings may be used with appropriate cooling method for high carrying loads. DRIVE Motor sheaves shall be cast iron, variable pitch on applications kw and smaller, and fixed pitch on 8. kw and larger. Drives and belts shall be located external to the fan casing and rated for % of the required motor kw. INISH AND COATING The entire fan assembly, excluding the shaft, shall be thoroughly degreased and deburred before application of a rust-preventative primer. After the fan is completely assembled, a finish coat of paint shall be applied to the entire assembly. The fan shaft shall be coated with a petroleum-based rust protectant. Aluminium components shall be unpainted. ACCESSORIES When specified, accessories shall be provided by Twin City an & Blower to maintain one source responsibility. ACTORY RUN TEST All fans prior to shipment shall be completely assembled and test run as a unit at the specified operating speed or maximum RPM allowed for the particular construction type. Each impeller shall be statically and dynamically balanced in accordance with ANSI/AMCA 4-96 "Balance Quality and Vibration Levels for ans" to an Application Category BV-, Balance Quality Grade G6.. Balance readings shall be taken by electronic type equipment in the axial, vertical, and horizontal directions on each of the bearings. Records shall be maintained and a written copy shall be available upon request. GUARANTEE The manufacturer shall guarantee the workmanship and materials for at least one () year from start-up or eighteen (8) months from shipment, whichever occurs first. 6 TWIN CITY AN - CATALOGUE M90

27 Twin City an

28 INDUSTRIAL PROCESS AND COMMERCIAL VENTILATION SYSTEMS CENTRIUGAL ANS UTILITY SETS PLENUM & PLUG ANS INLINE CENTRIUGAL ANS MIXED LOW ANS TUBEAXIAL & VANEAXIAL ANS PROPELLER WALL ANS PROPELLER ROO VENTILATORS CENTRIUGAL ROO & WALL EXHAUSTERS CEILING VENTILATORS GRAVITY VENTILATORS DUCT BLOWERS RADIAL BLADED ANS RADIAL TIP ANS HIGH EICIENCY INDUSTRIAL ANS PRESSURE BLOWERS LABORATORY EXHAUST ANS ILTERED SUPPLY ANS MANCOOLERS IBERGLASS ANS CUSTOM ANS Twin City an TWIN CITY AN & BLOWER 99 TRENTON LANE N MINNEAPOLIS, MN 44 PHONE: 6-- AX: Twin City an Companies, Ltd., Minneapolis, MN. All rights reserved. Catalog illustrations cover the general appearance of Twin City an & Blower products at the time of publication and we reserve the right to make changes in design and construction at any time without notice.